On Sun, 03 Jun 2001 00:21:48 +0200, Margus Ramst wrote:
>That would mean anisotropic absorption/emission, right?

Probably not.  It just means transforming the ray into the media's original
space before calculating the media's effect on it.  The result is anisotropic,
but only because the scaling is also anisotropic.

-- 
#macro R(L P)sphere{L F}cylinder{L P F}#end#macro P(V)merge{R(z+a z)R(-z a-z)R(a
-z-z-z a+z)torus{1F clipped_by{plane{a 0}}}translate V}#end#macro Z(a F T)merge{
P(z+a)P(z-a)R(-z-z-x a)pigment{rgbt 1}hollow interior{media{emission T}}finish{
reflection.1}}#end Z(-x-x.2y)Z(-x-x.4x)camera{location z*-10rotate x*90}

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